Frost dates for 27235Colfax, NC
The average last spring frost in Colfax is March 30 and the average first fall frost is November 5, giving a typical growing season of about 220 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 30
- Average first fall frost
- Nov 5
- Growing season
- 220 days
Safer after Apr 14 (1-in-10 risk)
Possible by Oct 25 (1-in-10 risk)
First frost typically in 2 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | Mar 29 · Apr 13 · Apr 27 | Oct 14 · Oct 27 · Nov 7 | 198 days | 100% |
| Frost / freeze (32°F) | Mar 12 · Mar 30 · Apr 14 | Oct 25 · Nov 5 · Nov 21 | 220 days | 100% |
| Hard freeze (28°F) | Feb 28 · Mar 18 · Apr 4 | Nov 3 · Nov 17 · Dec 4 | 244 days | 100% |
Planting calendar for Colfax
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Feb 27 – May 5 |
| Tomatoes | Transplant outdoors | Apr 15 – Jul 16 |
| Peppers | Start seeds indoors | Feb 27 – Mar 30 |
| Peppers | Transplant outdoors | Apr 29 – May 30 |
| Eggplant | Start seeds indoors | Mar 16 – Apr 14 |
| Eggplant | Transplant outdoors | Apr 29 – May 30 |
| Cucumbers | Sow outdoors | Apr 29 – Jul 26 |
| Summer squash | Sow outdoors | Apr 15 – May 30 |
| Winter squash & pumpkins | Sow outdoors | Apr 29 – May 30 |
| Snap beans | Sow outdoors | Apr 15 – Aug 18 |
| Sweet corn | Sow outdoors | Apr 15 – Jul 16 |
| Watermelon & cantaloupe | Sow outdoors | Apr 29 – May 30 |
| Okra | Sow outdoors | Apr 22 – May 15 |
| Peas | Sow outdoors (spring) | Feb 27 – Apr 14 |
| Potatoes | Plant outdoors (spring) | Feb 27 – Apr 29 |
| Onions | Start seeds indoors (spring) | Jan 16 – Feb 12 |
| Onions | Transplant outdoors (spring) | Mar 16 – Apr 14 |
| Broccoli | Start seeds indoors (spring) | Feb 9 – Mar 15 |
| Broccoli | Transplant outdoors (spring) | Mar 16 – Apr 14 |
| Broccoli | Start seeds indoors (fall) | Jul 6 – Jul 16 |
| Broccoli | Transplant outdoors (fall) | Aug 5 – Aug 16 |
| Cabbage | Start seeds indoors (spring) | Jan 30 – Feb 27 |
| Cabbage | Transplant outdoors (spring) | Feb 27 – Mar 30 |
| Cabbage | Start seeds indoors (fall) | Jun 26 – Jul 26 |
| Cabbage | Transplant outdoors (fall) | Jul 26 – Aug 26 |
| Leaf lettuce | Sow outdoors (spring) | Feb 27 – May 15 |
| Leaf lettuce | Sow outdoors (fall) | Jul 26 – Sep 11 |
| Spinach | Sow outdoors (spring) | Feb 20 – Apr 5 |
| Spinach | Sow outdoors (fall) | Aug 12 – Sep 16 |
| Radishes | Sow outdoors (spring) | Feb 27 – Apr 19 |
| Radishes | Sow outdoors (fall) | Jul 26 – Sep 26 |
| Kale | Sow outdoors (spring) | Mar 16 – Apr 5 |
| Kale | Sow outdoors (fall) | Jul 19 – Aug 26 |
| Carrots | Sow outdoors (spring) | Mar 30 – May 15 |
| Carrots | Sow outdoors (fall) | Jun 26 – Aug 11 |
| Garlic | Plant outdoors (fall) | Oct 26 – Nov 26 |
Where these dates come from
ZIP code 27235 is matched to the NOAA station Piedmont Triad Intl Ap, NC, 6 km away, at 890 ft elevation (9 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Piedmont Triad Intl Ap, NC (used) | 890 ft | Mar 30 | Nov 5 |
| High Pt, NC | 900 ft | Mar 30 | Nov 5 |
| Greensboro Wtp, NC | 765 ft | Apr 1 | Nov 4 |
| Winston Salem Rynlds Ap, NC | 970 ft | Mar 26 | Nov 9 |
Frost dates near Colfax
- High Point, NC 27261 · last Mar 30, first Nov 5
- Kernersville, NC 27285 · last Mar 26, first Nov 9
- Oak Ridge, NC 27310 · last Mar 30, first Nov 5
- Greensboro, NC 27409 · last Mar 30, first Nov 5
- Jamestown, NC 27282 · last Mar 30, first Nov 5
- Wallburg, NC 27373 · last Mar 30, first Nov 5
- Belews Creek, NC 27009 · last Mar 26, first Nov 9
- Walkertown, NC 27051 · last Mar 26, first Nov 9
Frequently asked questions
- When is the last frost in Colfax, NC?
- For ZIP code 27235, the average last spring frost (32°F) is March 30, based on NOAA 1991-2020 climate normals for the Piedmont Triad Intl Ap, NC weather station. There is a 1-in-10 chance of a frost after April 14.
- When is the first frost in Colfax, NC?
- The average first fall frost (32°F) is November 5. There is a 1-in-10 chance of frost by October 25, so tender plants are at risk from that point on.
- How long is the growing season in 27235?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 220 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.